I would say that Night Undersiege has been a success. Everyone seems to love it. I, however, enjoy regular underseige more due to the Score Limit Deathmatch rules. I would love to see Night Steam Canal with classic Undersiege rules. (4 v 4 Score Limit DM)

Furthermore, I'd LOVE to see Day Netherdale with 14 Player FFA and Night Nagas Pit with 4 v 4 Node Capture.

I don't really know how difficult this would be to do, but I think it would add a lot of really enjoyable options to the game.

Funnily enough the guy that I think inspired the creation of night underseige (the fact that it is SC mechanic on that map) no longer seems to be around here. I can't remeber his name but he used to come in chat a lot and argue his change suggestions for various maps etc.